The market for messaging apps that send texts, photos, videos and location information is crowded, but WeChat's claim to fame is fun. Its cool Live Chat walkie-talkie-style feature allows you and a group of friends to send short voice messages to one another. We also love the robust library of free and paid stickers that make messaging pals truly entertaining. The free app works on iOS, Android, Windows and BlackBerry devices, and there's a Web client for the desktop.
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